From 039ef3dd53fe134026be41bd82e76fa16f14af58 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emilio=20Cobos=20=C3=81lvarez?= <emilio@crisal.io>
Date: Fri, 21 Feb 2020 00:47:00 +0000
Subject: [PATCH] style: Fix one minor serialization issue which was causing
 test failures.

We were serializing calc(10% + 4px) as calc(10% + calc(4px)).

Differential Revision: https://phabricator.services.mozilla.com/D63400
---
 components/style/values/generics/calc.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/components/style/values/generics/calc.rs b/components/style/values/generics/calc.rs
index d7ba5e39807..99345b646fc 100644
--- a/components/style/values/generics/calc.rs
+++ b/components/style/values/generics/calc.rs
@@ -454,10 +454,10 @@ impl<L: CalcNodeLeaf> CalcNode<L> {
                             dest.write_str(" - ")?;
                             let mut c = child.clone();
                             c.negate();
-                            c.to_css(dest)?;
+                            c.to_css_impl(dest, false)?;
                         } else {
                             dest.write_str(" + ")?;
-                            child.to_css(dest)?;
+                            child.to_css_impl(dest, false)?;
                         }
                     } else {
                         first = false;